Machine for forming gaskets and applying them to sealing-caps.



PATENTED JULY 28, 1908.

L. M. .KEIZER. v MACHINE FOR FORMING GASKETS AND APPLYING THEM TO SEALING GAPS.

APPLICATION FILED MATH, 1902.

"N0 MODEL.

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No. 734,564. PATENTED JULY 28, 1903.

L. M. KEIZER. I MACHINE FOR FORMING GASKETSAND APPLYING THEM TO SEALING GAPS.

APPLICATION FILED MAY 12, 1902.

3 SHEETSSHEET 2.

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APPLICATION FILED my 12, 1902. N0 MODEL. s SHEETS-SHEET a ,fiwcz zZ o i' ,Lcwcs HZ. Warmer UNIT ED STATES.

Patented July 28, 1903.

PATENT OFFICE.

LEWIS M. KEIZER, OF BALTIMORE, MARYLAND, AS SIGNOR TO THE CROWN CORK & SEAL COMPANY, OF' BALTIMORE, MARYLAND.

MACHINE FOR FORMING GASKETS AND APPLYING THEM TO SEALING-CAPS.

SPECIFICATION formingpart of Letters Patent No. 734,564, dated J'u1y28, 1903-. Application filed May 12, 1902- Serial No. 107,040. (No model.)

To all-whom it may concern.-

Be it known that I, LEWIS M. KEIZER,a citizen of the United States, residing at Baltimore, State of Maryland, have invented certain new and useful Improvements in Machines for Forming Gaskets and Applying Them to Sealing-Caps, of which the following is a specification.

My invention relates to the manufacture of bottle-seals andparticularly to means for applying gaskets to the metallic cup-shaped bodies of the seals.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is a plan View of the invention. Fig. 2 is a front View of a portion of the machine. Fig. 3 is a detail view of one of the gasket -carrying arms and controlling means therefor. Fig. 4 is a. detail sectional view, partly in side elevation, showing portions of the two carrier-tables and the manner of transferring the gasket from the carrier-arm to the metallic seall. Fig. 5 is a perspective view showing the means for feeding the metallic seals to the carrier-arms. Fig. 6 is a detail view of cutting and guide means for the gaskets. Fig. 7 is a plan view of the parts shown in Fig. 6. Fig. 8 is a detail sectional View illustrating the action of the gasket-cutter and the manner of feeding the gaskets to the carrier-arms. Fig. 9'is a detail view relating to the stripper for the caps. The machine comprises as its main elements a table 1, having arms 2 for carrying the gaskets; a second table 3, having arms 4 for carrying the metallic seals; slides 32 on the table 1 for transferring the gaskets from the carryingarms to the metallic seals held on the arms 4, said transferring action taking place at the point between the tables at which the arms meet; means at 5 for cutting the gaskets and feeding them to the arms of table 1, and means at 6 for feeding the metallic seals onto the arms of carrier 3 for receiving the gaskets.

The gaskets are formed by cutting a rubber tube transversely to its axis to form rings. The rubber tube passes into the machine between. a pair of feed-rollers 7 and 8, the lower one of which is driven by a worm 9 on a shaft 10, journaled in the frame. Motion is imparted to the upper feed-roller through gear ing 11 12 on the shafts of the rollers. The rollers have flat surfaces to contact with the rubber tube and they press it from cylindrical form into fiat form, this change in the shape of the rubber tube being indicated in the plan view, Fig. 7, at 13.

From the feedrollers the flattened rubber tube passes into a channel 14 of a guide-block l5, suitably supported on the frame, and by this channel the flattened tube is directed. between male and female cutters 1617. The cutter16 comprises a rotary disk havinga cutting-knife 18 extending about its periphery andinclined to the axis of rotation. This cutting edge operates transversely of the rubber tube and, as shown in Fig. 6, its forward end at 19 is substantially flush with the periphery of the cutting disk, from which point it gradually rises in spiral form to its rear end 20. The cutter-wheel 17 is arranged with its axis at provided with a series of slits in its surface to receive the cutting-knife. As shown in Figs. 1 and 6, this slitted wheel 17 has a concaved periphery conforming substantially to the flattened rubber tube. The spiral form of the cutting-blade 18 will be seen from. Fig. 8, its front and rear ends beginning and ending in the same axial plane, but separated right angles to the cutting-wheel 16, and it is from each other by a space equal to the distance between the slits in the wheel 17, so that as the rear end 20 of the cutting-blade leaves the slitted wheel the front end 19 of said blade, rotating in the arrow direction, Fig. 6, will be opposite the next slit in the wheel 17 and will have commenced the cutting of the rubbertube to make the gasket;

The wheel 17 is rotated constantly in the arrow direction, Fig. 2, by a gear-wheel -21 on its shaft meshing with a gear 22 on the shaft of the upper feed-roller 7, and its rate of rotation is such that each time the front end of the cutting-blade comes around to its uppermost position it will be opposite a new slit 1 in the wheel to cooperate therewith in cutring agasket from the rubber tube, and this gasket will be pushed to the right, Fig. 1, by the rotation of the slitted wheel and also by the spiral form of the cutting-blade, and in this movement to the right the gasket will enter a continuation 14 of the channel 14,

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. arm, with the gasket held thereby.

which channel gradually emerges from an elongated or flattened cross-sectiona1 form near the cutters to a substantially cylindrical form at its discharge end 23, Figs. 6 and 7. At this discharge end the gasket rests against a spring-plate 24, which is provided with a slot to permit the passage of one of the arms 2, before described. Referring to Figs. 7 and 8 and supposing the table 1 to be rotating so as to carry the arm 2 in the arrow direction, it will be seen that the end of the arm will enter the foremost gasket and sweep the same laterally to the left out of the chan nel 14, an opening 25, Fig. 8, being left in the wall of the box for the passage of the Itwill be noticed from Fig. 6 that the slot 25 is smaller in width than the diameter of the gasket, so that the upper and lower edges of the gasket will be held by the edges of the plate 24 adjacent to the slot. As the arm 2 sweeps around in the arrow direction its end passes through the slot or notch 26 of a spring-arm 27, supported by the box 15, and this spring-arm is of such form as to push the gasket back from the end of the arm 2, so as to be held securely thereby.

The rotation of the table 1 in the direction of the arrow, Fig. 1, will bring the arms 2 one by one into alinement with the arms 4, carried by the second table 3, so as to transfer the gaskets onto the seal-caps carried on the said arms 4. The arms 2 comprise, as shown in Figs. 3 and 4, a series of spring fingers 28. The arms are held to the table 1 by their shanks 29, fitted to openings in the flange 30 of the table and secured by setscrews 31. Asleeve or slide 32 cooperates with each arm, said sleeve having movement along the arm, for which purpose it is provided with a roller 37, adapted to contact with a cam 33, fixed to a cap-plate 34, which is supported on the shaft 35 of the table 1 and is held against rotation by a bar 36, connected thereto and loosely to the shaft of the table 3. When the sleeve 32 is thrust outwardly by the cam 33, it will remove its inclined shoulder 38, Fig. 4, from the corresponding inclined surface 39 on the fingers 28, so that these fingers may spread apart by their own resilience, and this action takes place, as shown in Figs. 1 and 2, just before the arm 2 gets into alinement with the capcarrying arm on the table 3. This separation of the fingers expands the gasket carried by the arm, so that it may be readily slipped onto the outside of the sealing-cap, which takes place immediately the arm 2 alines with the cap-carrying arm 4 by the continued outward movement of the sleeve 32, which forces the expanded gasket from the expanded spring fingers onto the sealing-cap. The continued rotation of the table 1 causes the sleeve to be retracted by a cam 40, fixed to the cap or cover-plate 34, and the shoulders 38 now pressing upon the inclines 39 of the fingers will press said fingers together, thus contracting the arms into condition for taking thereon another gasket. The continued rotation of the table 3 causes the cap to which the gasket has just been applied to be discharged from the arm 4by a stripper 41, consisting of flanges 42 for engaging the cap, and the discharged cap then falls into a suitable funnel or trough 43 to be directed to any suitable point. The edges of these flanges present a passage through which the arm carrying the cap passes. The edges are tangential to the curved path of the arm, and they engage the edge of the sealing-cap and remove it from the arm.

The means located at point 6 for feeding the sealing-caps onto the ends of the arms 4 comprise a chute 44, Fig. 5, down which the caps pass, and a cut-01f consisting of a roller 45, carried by a pivot-lever 46, which is pressed by a spring 47 constantly toward the arms 4.

By referring to Fig. 5 it will be seen that one of the arms 4 has received its cap, while the other arm is about to engage the cap 48, which is to be carried thereby. The end of the arm engages this cap by entering slightly its open end, and as the arm sweeps to the right the roller presses the cap firmly upon the arm. The relative position of the parts is such that the roller is pressed back by this action, and another cap is therefore allowed to drop from the chute into the lowermost position, which is in the horizontal plane of the arms 4, and upon the release of the roller, due to the passage of the arm4 by it, the said roller immediately returns to the position shown in Figs. 1 and 5to press upon the cap at 48 to hold it in position for receiving the arm 4 and for securely pressing it thereon.

The arms 2 may be either rigidly fixed to the table 1 or may have slight movement longitudinally, in which latter case, as shown in Fig. 4, the set-screw 31 passes into aslightlyenlarged hole in the shank 29. This construction enables the gasket-carrying fingers to move close to the sealing-cap. The slight longitudinal movement of the arm is derived from the action of the sleeve.

Referring now to the driving mechanism of the machine, the rotary knife is driven by gearing 49 50 from the shaft 10, and this shaft is driven through gearing 51 52 53 from a main driving-shaft 54, which shaft, through gearing 55 56, drives the short shaft 57, jour naled in bearings 58 below the frame of the machine, which shaft has a beveled pinion 59 thereon meshing with a bevel-gear 60 on the shaft 35 of the table 1, by which this table is driven constantly, and from this table constant rotary motion is communicated to the table 3 through the gearing 61 62, Fig. 1.

In order to facilitate the cutting of the rubber, it is necessary to moisten the same, for which purpose I provide a receptacle 61, Fig. 2, and a petcock 62, by which the water in drops may be fed onto the cuttingwheel 17.

A suitable clutch may be used at 64, by

2. In combination, a series of arms forholding sealing-caps which fit over the ends of said arms, a movable carrier-table for said arms, automatic means for feeding the previously-formed sealing-caps onto said arms and automatically-operating means for applying gaskets onto the outside of said sealing-caps, substantially as described.

3. In combination, means for holding sealing-caps, means for forming the gaskets and automatic means for transferring the gaskets from the forming means onto the sealing caps, said means including a carrier to receive the gaskets from the forming means and devices for transferring the gaskets from the carrier onto the caps, substantially as described.

4. In combination, means for holding sealing-caps, anarm to carry the gaskets to apply the same thereto, means for feeding the gaskets, means for holding the gaskets in position so that the arm may enter it, said means comprising a slot through which the arm may .pass and edges against which the upper and lower edges of the gasket may bear, substantially as described.

5. In combination, a series of moving arms for carrying gaskets, means for feeding gaskets to the said arms in succession, a conveyer carrying the arms, a conveyor carrying holding means for seals and means for transferring the gaskets from the arms onto said seals, substantially as described.

6. In combination, arms for'holding sealingcaps, a chute for directing the sealing-caps to said arms, a yielding roller at the lower end of the chute, said roller being in the path of the cap-holdin g arms to press the sealing-caps onto the holding-arms as they sweep by, a carrier for the arms, a series of arms for carrying gaskets, a carrier for said arms and means for transferring the gaskets from the arms onto the sealing-caps, substantially as described.

7. In combination arms for holding sealing caps, a chute for directing the sealing-caps to said holding-arms, a yielding roller at the lower end of the chute, said roller being in the path of the cap-holding arms to press the sealing-caps onto the holding-arms as they sweep by, said roller acting as a cut-off for the sealing-caps in the chute, acarrier for the cap-holding arms, a series of arms for carrying gaskets, a carrier for said arms and means for transferring the gaskets from the arms onto the sealing-caps, described. .r

8. In combination, a continuously-moving carrier having arms for holding gaskets, a

substantially as second continuously-moving carrier having arms for holding sealing-caps and means acting when the continuously-moving arms come opposite each other and axially in line to transfer the gaskets onto the sealingcaps, substantially as described.

9. In combination, a traveling carrier or table having arms, means for feeding gaskets thereto at an inclination to the longitudinal axis of the said arms, a carrier having holding means for sealing-caps and means for transferring the gaskets from their holdingarms onto the sealing-caps, substantially as described.

10. In combination, two movable carriers, one having a series of arms for holding thereon sealing-caps which fit over the ends of said arms and the other carrying a series of expansible fingers for gaskets, and a series .of

slides for expanding or contractingthe said fingers, and cam-means for operating the slides as the carriers move, substantially'as described.

11. In combination, a traveling carrier having arms, means for feeding gaskets thereto at an inclination to the longitudinal axis of the said arms, a second carrier or table having holding means for sealing-caps and means for transferring the gaskets from their holding means onto the sealing-caps, said means including sleeves or slides moving longitudinally of the gasket-holding arms andcam.

means for operating the saidsleeve or slide as the carrier moves, substantially as described.

12. In combination, meansforholding sealing-caps, an arm to carry gaskets to' apply the same thereto, means for holding a gasket IIO with its opening presented to the said arm to be taken thereby and means for transferring the gasket from thearm onto the sealing-cap, substantially as described.

13. In combination, means for holding sealing-caps, means for holding gaskets, an arm traveling in a direction laterally of the axis of the gasket and adapted toreceive the same and means for transferring the gasket from the'arm onto the sealing-cap, substantially as described.

14. In combination, a conveyerhaving a series of arms for carrying gaskets, a second conveyor having a series of arms for holdingv sealing-caps and means for transferring the gaskets from their carryingarms to the sealing-caps, substantially'asdescribed.

In testimonywhereof I'aflix my-signature T in'prescnce of two witnesses.

Witnesses:

THOS. KELL BRADFORD, AUG. W. BRADFORD.-

' LEWIS M. KEIZElt. a 

